Finding the Fourth Proportional to 647,219.70, 970,829.55 and 529,121.70
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Solution
The fourth proportional to 647,219.70, 970,829.55 and 529,121.70 is: 793,682.55
Step by Step Solution
- Step 1: Write the proportion equation
647,219.70 : 970,829.55 = 529,121.70 : x - Step 2: Convert to fraction form
647,219.70/970,829.55 = 529,121.70/x - Step 3: Cross multiply
647,219.70x = 970,829.55 × 529,121.70 - Step 4: Simplify right side
647,219.70x = 513,686,981,906.24 - Step 5: Solve for x
x = 513,686,981,906.24/647,219.70 - Step 6: Final answer
x = 793,682.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.